On 23 June 2016, the United Kingdom voted to leave the European Union. A decade later, in June 2026, the anniversary of that vote coincides with the resignation of Keir Starmer, announced on 22 June. He becomes the sixth Prime Minister to leave office since the referendum, bringing the total to seven heads of government in ten years, a sign of institutional instability without precedent in recent British parliamentary history. The country is preparing to name its seventh leader.
On the economic front, a broad consensus has formed. The estimates cited put the Brexit-related loss of GDP at between 4 and 8 percent compared with a hypothetical path without departure. Trade between the United Kingdom and the Union has declined since the effective exit in 2020, accompanied by greater administrative complexity at borders, for goods as well as people. Agreements struck with third countries have not offset this retreat. Aggregated polls indicate that a majority of Britons now judge the impact on the economy and the cost of living to be negative.
The rapprochement process launched with the EU since 2024 remains fragile. The UK-EU summit planned for 22 July was immediately postponed after Starmer's resignation, leaving diplomacy hostage to the stability of the succession.
Several readings nonetheless diverge. The scale of the damage and the share of responsibility between the referendum campaign and its implementation are debated. The turnover of Prime Ministers is attributed by some to Brexit itself, by others to factors specific to domestic politics. The future rapprochement, finally, splits those who stress persistent obstacles from those who perceive the start of a debate over a possible return.
